There seems to be a bit of confusion here.
Some of these fonts are bitmapped "pixel" fonts, plotted point by point. They are normally in Windows .fon format and won't scale as such. If it appears to scale it is simply because there are multiple drawn versions in the file but should look identical on Mac/Linux systems if the font files are converted properly.
The more professional fonts are in TrueType/OpenType format which is scalable vector operations. These fonts will look different depending on whether you have smoothing off, on or ClearType and will look different again on Mac OS X and Linux systems because of differences in the font rendering engines.
Some TrueType/OpenType fonts will appear not smoothed when smoothing is on if;
1. The font information contains specific information that it shouldn't be smoothed at certain sizes (GASP records)
2. It contains hand-tuned bitmap representations of the font or advanced hinting information on where to put the pixels at low sizes
3. The font is in fact individual squares to represent pixels, converted from a bitmap font
The third option is why some TrueType fonts only work at a specific size. This was mainly done because some Windows apps notably Macromedia Flash only work with TrueType fonts. These fonts will also look pixelated when printed.
Anyway, to add an extra font or two to the list one of my favourite proper TrueType ones is Anonymous from http://www.ms-studio...Sales/anonymous.html
For bitmapped font I use my own Envy Code B from http://www.damieng.c...ginal/EnvyCodeB.aspx